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Bit of a rare CB250RS Deluxe

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Laverda Dave:
Similar to my Moto Morini Bryan, the cam belt must be renewed every 2 years despite the milage. Last time I renewed it I had only ridden just over 200 miles and these belts are expensive as they are individually hand picked! They are the same belt but have to be put on a jig to test for individual slack and are marked as A, B or C. Morini in their wisdom marked the cam and crankshaft gear wheels A, B or C. Put an A belt on a gear wheel marked B and it will be marginally too slack and the timing could be out.

Anyway, back to the thread, I think the comment made by Arch Stanton is correct, the bike on the ebay photo has a different set of headers compared to the 'as found' photos. I still cannot get my head around the 89 miles for the service though, when I was a learner I was out on the bike every moment I could get and 89 miles would be completed within a day or two.

McCabe-Thiele (Ted):
I doubt it applies to Classic Bike parts, modern car cambelt materials/construction  have improved massively since 1984 when my Astra 1600SR (could not afford a GT/E) needed a belt change every 40k miles iirc.

Quite a few manufacturers are now 10 years or 100,000 miles today provided they are not contaminated with oil.
The tensioner wheels or water pumps often start to fail first.


On topic
The first photo I saw the headers looked pimpled with rust as you would expect.
Could it be some clever Photoshop technology at work?

Bryanj:
Have you noticed Ford have dropped the recommended mileage change for their "wet belt" engines by quite a bit, when i picked up my new L200 21 yrs ago on a friday it was booked in for 1st service next monday(3days) trip to family oop north and 600 miles later-----

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